. . . . . . . . "Activin receptor type-2B" . "19"^^ . . "512"^^ . . "Mature protein occurs in NX_Q13705-1 at amino acids 19 - 512." . . . . . "neXtProt gold" . . . . . . . . . . "2014-09-19T00:00:00.0Z"^^ . . . "neXtProt database" . "CALIPHO project" . . . . . "3" . . .